Tongue cleaner



FIG. 1 is a bottom plan view of a tongue cleaner showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a left bottom perspective view;

FIG. 4 is a left top perspective view;

FIG. 5 is a front view;

FIG. 6 is a front bottom perspective view; and,

FIG. 7 is a back top perspective view. 

The ornamental design for a tongue cleaner, as shown and described. 